There is no known public copy of De Narwhal, a Dutch animation that appears to have circulated only in limited settings such as festivals, educational screenings, or local television. It is not available on any major streaming platform, and no online archive indexes a digital copy. Your best next step is to contact Dutch film and sound archives directly and ask for a viewing copy or any record of the work.
Start by searching with Dutch spellings too: “De Narwal” or “De Narwals.” If you remember the decade, the director, or where you first saw it, include those details, because they will make archive requests much more effective. The two most useful institutions are the national film archive and the national sound and vision archive in the Netherlands. Both hold Dutch productions, broadcast tapes, and festival submissions. They may not have digitized every short film, but they often keep physical prints or catalog records that are not visible through a general search engine.
You should also try film festivals that specialize in animation, especially Dutch ones. Festival archives and programmers sometimes keep screening copies or contact sheets for past editions. If you cannot find a festival name, look for academic media studies departments in the Netherlands; a lecturer in Dutch film or animation history may remember the title or know who made it.
Be honest about the tradeoffs. Major streaming services and YouTube will probably not help, because obscure short animation rarely gets licensed without a rights holder pushing it. Archives may give you access only on-site, and some require a research appointment or a fee. Copyright law also means they cannot always send you a copy, even if they hold one. That is not the same as saying the film is gone. The label “fully lost” usually means it is just not indexed online, not that every physical copy has been destroyed.
A concrete plan: write a short message in Dutch and English with the title, estimated year, any dialogue or visual details you remember, and your reason for requesting it. Send the same message to the national film archive, the national sound and vision archive, and two or three Dutch animation festivals. Ask specifically whether they have a catalog entry, a print, or a contact for the filmmaker. You can also post your query in Dutch filmmaker communities; someone may have a private copy or know the production company.
Finally, keep your search visible. Lost media forums and r/dutch are fine places to leave a trail, but the archives are the ones with actual records. A polite, detailed request is far more likely to unearth De Narwhal than another general online search.